| 词汇 | radius |
| 释义 | radius noun [ C ] uk/ˈreɪ.di.əs/ us/ˈreɪ.di.əs/ radii (DISTANCE) （圆或球体的）半径，半径长度 (the length of) a straight line joining the centre of a circle to its edge or the centre of a sphere to its surface The radius of this wheel is 30 cm.. 这个轮子的半径是30厘米。 This wheel has a radius of 30 cm. 这个轮子的半径是30厘米。 半径距离;半径范围;周围 a distance from a central point The station, shopping centre and school lie within a one-mile radius of the house. 车站、购物中心和学校都在距这所房子1英里的范围之内。 (BONE) anatomy specialized桡骨 the thicker of the two bones in the lower arm |
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